Painterly rendering using human vision

du Buf, J. M. H.; Rodrigues, J. M. F.; Nunes, S.; Almeida, D.; Brito, Vera; Carvalho, J.

http://hdl.handle.net/10400.1/35

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Abstract(s)

Painterly rendering has been linked to computer vision, but we propose to link it to human vision because perception and painting are two processes that are interwoven. Recent progress in developing computational models allows to establish this link. We show that completely automatic rendering can be obtained by applying four image representations in the visual system: (1) colour constancy can be used to correct colours, (2) coarse background brightness in combination with colour coding in cytochrome-oxidase blobs can be used to create a background with a big brush, (3) the multi-scale line and edge representation provides a very natural way to render fi ner brush strokes, and (4) the multi-scale keypoint representation serves to create saliency maps for Focus-of-Attention, and FoA can be used to render important structures. Basic processes are described, renderings are shown, and important ideas for future research are discussed.

Keywords

Visão computorizada Córtex visual Perception Colour Brightness Attention NPR Painterly rendering

URI

http://hdl.handle.net/10400.1/35

Citation

PORTUGUESE JOURNAL OF COMPUTER GRAPHICS: SPECIAL EDITION OF VIRTUAL JOURNAL: ADVANCES OF COMPUTER GRAPHICS IN PORTUGALPortuguese Journal of Computer Graphics: Special Edition of Virtual Journal: Advances of Computer Graphics in Portugal. - Lisboa : ADETTI. - Vol. AICG (July 2005), p. 12